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                                <h1 id="nxos-&#x6846;&#x67B6;">NXOS &#x6846;&#x67B6;</h1>
<h2 id="&#x4E00;&#x3001;&#x6DF7;&#x5408;&#x5185;&#x6838;&#x6846;&#x67B6;">&#x4E00;&#x3001;&#x6DF7;&#x5408;&#x5185;&#x6838;&#x6846;&#x67B6;</h2>
<p><code>NXOS</code> &#x91C7;&#x7528;&#x6DF7;&#x5408;&#x5185;&#x6838;&#x6846;&#x67B6;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x7ED3;&#x5408;&#x5B8F;&#x5185;&#x6838;&#x548C;&#x5FAE;&#x5185;&#x6838;&#x3002;&#x8FD9;&#x6837;&#x7684;&#x7CFB;&#x7EDF;&#x6709; <code>Windows NT</code> &#x5185;&#x6838;&#x3001;&#x82F9;&#x679C; <code>XNU</code> &#x5185;&#x6838;&#xFF0C;&#x8FD8;&#x6709;&#x56FD;&#x4EA7;&#x5F00;&#x6E90;&#x7CFB;&#x7EDF; <code>RT-Thread Smart</code>&#x3002;  </p>
<pre><code>+-----------------------------------+
|  app                              |
+-----------------------------------+
| (fatfs, extfs, netstack)          |
+-----------------------------------+
|  nxbase | udrivers | userverce    |
+-----------------------------------+
/ syscall                           /
+-----------------------------------+
| vfs | hub system                  |
+-----------------------------------+
| kdrivers | kservice               |
+-----------------------------------+
| thread | vmm | irq | timer        |
+-----------------------------------+
| arch (x86, arm, riscv, ...)       | 
+-----------------------------------+
| hardware                          |
+-----------------------------------+
</code></pre><p>&#x5728; <code>NXOS</code> &#x4E2D;&#xFF0C;&#x8BB8;&#x591A;&#x529F;&#x80FD;&#x90FD;&#x662F;&#x5185;&#x6838;&#x548C;&#x7528;&#x6237;&#x76F8;&#x7ED3;&#x5408;&#x6765;&#x5B9E;&#x73B0;&#x3002;
&#x4E00;&#x79CD;&#x662F;&#x5185;&#x6838;&#x5B8C;&#x6210;&#x90E8;&#x5206;&#x529F;&#x80FD;&#xFF0C;&#x7528;&#x6237;&#x5B8C;&#x6210;&#x67D0;&#x90E8;&#x5206;&#x529F;&#x80FD;&#x3002;
&#x53E6;&#x4E00;&#x79CD;&#x662F;&#x5185;&#x6838;&#x5B9E;&#x73B0;&#x56FA;&#x5B9A;&#x63A5;&#x53E3;&#xFF0C;&#x63D0;&#x4F9B;&#x53EF;&#x6269;&#x5C55;&#x63A5;&#x53E3;&#xFF0C;&#x7528;&#x6237;&#x6765;&#x8865;&#x5145;&#x63A5;&#x53E3;&#xFF0C;&#x589E;&#x5F3A;&#x8BE5;&#x529F;&#x80FD;&#x3002;</p>
<p>&#x5728;&#x5185;&#x6838;&#x4E2D;&#xFF0C;&#x4F1A;&#x652F;&#x6301;&#x57FA;&#x7840;&#x7684;&#x7EBF;&#x7A0B;&#xFF0C;&#x5185;&#x5B58;&#x7BA1;&#x7406;&#xFF0C;&#x4E2D;&#x65AD;&#x7BA1;&#x7406;&#x7B49;&#x57FA;&#x7840;&#x529F;&#x80FD;&#x3002;
&#x4EE5;&#x53CA;&#x5728;&#x6B64;&#x57FA;&#x7840;&#x4E4B;&#x4E0A;&#x652F;&#x6301;&#x4E86; <code>VFS</code>&#xFF0C;<code>HUB</code>&#x7B49;&#x529F;&#x80FD;&#x3002;
&#x56E0;&#x6B64;&#x53EF;&#x4EE5;&#x628A;&#x66F4;&#x591A;&#x529F;&#x80FD;&#x653E;&#x5230;&#x7528;&#x6237;&#x6001;&#x53BB;&#x6267;&#x884C;&#xFF0C;<code>TTY</code>&#xFF0C;<code>Fatfs</code>&#xFF0C;<code>Lwip</code>&#x7B49;&#x3002;</p>
<p>&#x5BF9;&#x4E8E;&#x8FD9;&#x79CD;&#x529F;&#x80FD;&#x7684;&#x652F;&#x6301;&#xFF0C;&#x9700;&#x8981; <code>HUB</code> &#x67A2;&#x7EBD;&#x7CFB;&#x7EDF;&#x673A;&#x5236;&#x53BB;&#x5B9E;&#x73B0;&#x3002;&#x7B80;&#x5355;&#x6765;&#x8BF4;&#xFF0C; <code>HUB</code> &#x662F;&#x4E00;&#x79CD;&#x8FC7;&#x7A0B;&#x8C03;&#x7528;&#x7684;&#x53D8;&#x79CD;&#x673A;&#x5236;&#x3002;
&#x5B83;&#x53EF;&#x4EE5;&#x5B9E;&#x73B0;&#x672C;&#x5730;&#x8FC7;&#x7A0B;&#x8C03;&#x7528;&#x7684;&#x529F;&#x80FD;&#xFF0C;&#x4F46;&#x662F;&#x66F4;&#x591A;&#x7684;&#x662F;&#x53BB;&#x505A;&#x5185;&#x6838;&#x548C;&#x7528;&#x6237;&#x6001;&#x670D;&#x52A1;&#x95F4;&#x7684;&#x6570;&#x636E;&#x63A7;&#x5236;&#x548C;&#x4F20;&#x8F93;&#xFF0C;&#x662F;&#x4E8C;&#x8005;&#x7684;&#x67A2;&#x7EBD;&#x3002;</p>
<p>&#x5BF9;&#x4E8E; <code>VFS</code> &#x7684;&#x5B9E;&#x73B0;&#xFF0C;&#x5185;&#x6838;&#x4E2D;&#x53EA;&#x4F1A;&#x6709;&#x4E00;&#x4E2A;&#x7EDF;&#x4E00;&#x7684;&#x63A5;&#x53E3;&#xFF0C;&#x7528;&#x6237;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x7CFB;&#x7EDF;&#x8C03;&#x7528;&#x7684;&#x65B9;&#x5F0F;&#x6765;&#x4F7F;&#x7528;&#x6587;&#x4EF6;&#x64CD;&#x4F5C;&#x3002;
&#x800C;&#x5177;&#x4F53;&#x7684;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x5B9E;&#x73B0;&#x662F;&#x8FC1;&#x79FB;&#x5230;&#x4E86;&#x7528;&#x6237;&#x6001;&#x53BB;&#x5B9E;&#x73B0;&#x3002;
&#x5F53;&#x9700;&#x8981;&#x652F;&#x6301;&#x67D0;&#x4E2A;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x53EA;&#x9700;&#x8981;&#x6267;&#x884C;&#x4E00;&#x4E2A;&#x7528;&#x6237;&#x6001;&#x7684;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x8BC6;&#x522B;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x4E86;&#x3002;
&#x800C;&#x8FD9;&#x79CD;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x673A;&#x5236;&#xFF0C;&#x662F;&#x57FA;&#x4E8E; <code>HUB</code> &#x7CFB;&#x7EDF;&#x6765;&#x505A;&#x8F6C;&#x6362;&#x5B9E;&#x73B0;&#x7684;&#x3002;</p>
<p><img src="figures/hub_system.png" alt="hub&#x6846;&#x67B6;"></p>
<h2 id="&#x4E8C;&#x3001;&#x76EE;&#x5F55;&#x6846;&#x67B6;">&#x4E8C;&#x3001;&#x76EE;&#x5F55;&#x6846;&#x67B6;</h2>
<h3 id="1-&#x9879;&#x76EE;&#x76EE;&#x5F55;">1. &#x9879;&#x76EE;&#x76EE;&#x5F55;</h3>
<table>
<thead>
<tr>
<th>&#x76EE;&#x5F55;</th>
<th>&#x63CF;&#x8FF0;</th>
</tr>
</thead>
<tbody>
<tr>
<td>.vscode</td>
<td>vscode&#x7684;&#x4E00;&#x4E9B;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#xFF0C;&#x6709;gdb&#x8C03;&#x8BD5;&#x914D;&#x7F6E;</td>
</tr>
<tr>
<td>configs</td>
<td>&#x5E73;&#x53F0;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#xFF0C;&#x914D;&#x7F6E;&#x4E86;&#x652F;&#x6301;&#x7684;&#x5E73;&#x53F0;</td>
</tr>
<tr>
<td>docs</td>
<td>&#x5185;&#x6838;&#x4E00;&#x4E9B;&#x529F;&#x80FD;&#x7684;&#x6587;&#x6863;&#x8BF4;&#x660E;</td>
</tr>
<tr>
<td>scripts</td>
<td>&#x7528;&#x5230;&#x7684;xbuild&#x811A;&#x672C;&#x548C;kconfig&#x811A;&#x672C;&#x7B49;</td>
</tr>
<tr>
<td>src</td>
<td>nxos &#x5185;&#x6838;&#x7684;&#x6E90;&#x7801;</td>
</tr>
</tbody>
</table>
<h3 id="2-&#x5185;&#x6838;&#x6E90;&#x7801;&#x76EE;&#x5F55;">2. &#x5185;&#x6838;&#x6E90;&#x7801;&#x76EE;&#x5F55;</h3>
<table>
<thead>
<tr>
<th>&#x76EE;&#x5F55;</th>
<th>&#x63CF;&#x8FF0;</th>
</tr>
</thead>
<tbody>
<tr>
<td>arch</td>
<td>&#x67B6;&#x6784;&#x76F8;&#x5173;&#x4EE3;&#x7801;&#xFF0C;x86&#xFF0C; riscv64&#x7B49;</td>
</tr>
<tr>
<td>drivers</td>
<td>&#x9A71;&#x52A8;&#x7A0B;&#x5E8F;&#xFF0C;&#x78C1;&#x76D8;&#xFF0C;&#x8F93;&#x5165;&#x8F93;&#x51FA;&#x8BBE;&#x5907;&#x7B49;</td>
</tr>
<tr>
<td>fs</td>
<td>&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x6846;&#x67B6;&#x4EE5;&#x53CA;&#x5404;&#x79CD;&#x6587;&#x4EF6;&#x7CFB;&#x7EDF;&#x652F;&#x6301;</td>
</tr>
<tr>
<td>include</td>
<td>&#x5934;&#x6587;&#x4EF6;</td>
</tr>
<tr>
<td>init</td>
<td>&#x5185;&#x6838;&#x521D;&#x59CB;&#x5316;&#x4EE5;&#x53CA;main&#x6838;&#x5FC3;</td>
</tr>
<tr>
<td>io</td>
<td>I/O&#x9A71;&#x52A8;&#x6846;&#x67B6;&#x548C;&#x4E2D;&#x65AD;&#x7BA1;&#x7406;</td>
</tr>
<tr>
<td>ipc</td>
<td>&#x8FDB;&#x7A0B;&#x95F4;&#x901A;&#x4FE1;</td>
</tr>
<tr>
<td>kernel</td>
<td>&#x5185;&#x6838;&#x5176;&#x4F59;&#x6A21;&#x5757;</td>
</tr>
<tr>
<td>mm</td>
<td>&#x5185;&#x5B58;&#x7BA1;&#x7406;&#x6A21;&#x5757;</td>
</tr>
<tr>
<td>platform</td>
<td>&#x5E73;&#x53F0;&#x652F;&#x6301;&#xFF0C;&#x5B58;&#x653E;&#x5177;&#x4F53;&#x7684;&#x5E73;&#x53F0;&#xFF0C;&#x6BD4;&#x5982;pc&#x5E73;&#x53F0;&#x6216;&#x8005;&#x4E00;&#x4E2A;&#x5F00;&#x53D1;&#x677F;</td>
</tr>
<tr>
<td>process</td>
<td>&#x8FDB;&#x7A0B;&#x7BA1;&#x7406;&#xFF0C;&#x7CFB;&#x7EDF;&#x8C03;&#x7528;&#x76F8;&#x5173;&#x5185;&#x5BB9;</td>
</tr>
<tr>
<td>sched</td>
<td>&#x8C03;&#x5EA6;&#x6A21;&#x5757;&#xFF0C;&#x7EBF;&#x7A0B;&#x548C;SMP&#x7684;&#x5185;&#x5BB9;&#xFF0C;&#x4EE5;&#x53CA;&#x540C;&#x6B65;&#x673A;&#x5236;</td>
</tr>
<tr>
<td>test</td>
<td>&#x6D4B;&#x8BD5;&#x6A21;&#x5757;&#xFF0C;&#x6D4B;&#x8BD5;&#x6846;&#x67B6;&#x548C;&#x6D4B;&#x8BD5;&#x4EE3;&#x7801;</td>
</tr>
<tr>
<td>time</td>
<td>&#x65F6;&#x95F4;&#x6A21;&#x5757;&#xFF0C;&#x65F6;&#x949F;&#x548C;&#x5B9A;&#x65F6;&#x5668;</td>
</tr>
<tr>
<td>utils</td>
<td>&#x5E38;&#x7528;&#x7684;&#x529F;&#x80FD;&#x7EC4;&#x4EF6;&#xFF0C;&#x5C0F;&#x5DE5;&#x5177;&#xFF0C;log&#x663E;&#x793A;&#x4EE5;&#x53CA;&#x5B57;&#x7B26;&#x4E32;&#x64CD;&#x4F5C;&#x7B49;</td>
</tr>
</tbody>
</table>
<h3 id="3-&#x5E73;&#x53F0;&#x6846;&#x67B6;">3. &#x5E73;&#x53F0;&#x6846;&#x67B6;</h3>
<p><code>NXOS</code> &#x91C7;&#x53D6;&#x67B6;&#x6784;&#x548C;&#x5E73;&#x53F0;&#x5206;&#x79BB;&#x7684;&#x63AA;&#x65BD;&#xFF0C;&#x5176;&#x539F;&#x56E0;&#x5728;&#x4E8E;&#xFF0C;&#x4E00;&#x4E2A;&#x67B6;&#x6784;&#x53EF;&#x80FD;&#x6709;&#x591A;&#x4E2A;&#x5E73;&#x53F0;&#xFF0C;&#x5206;&#x79BB;&#x540E;&#x53EF;&#x4EE5;&#x670D;&#x7528;&#x67B6;&#x6784;&#x7684;&#x4EE3;&#x7801;&#x3002;</p>
<table>
<thead>
<tr>
<th>&#x67B6;&#x6784;</th>
<th>&#x5E73;&#x53F0;</th>
</tr>
</thead>
<tbody>
<tr>
<td>x86</td>
<td>i386, pc</td>
</tr>
<tr>
<td>riscv64</td>
<td>virt riscv64, k210, d1</td>
</tr>
</tbody>
</table>

                                
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